Slide notes:There are some members of the back office that patients may not see during their office visit. In order to bill for the visit, health care providers use specific codes to delineate diagnoses and levels of care, and these codes are interpreted by billers and coders. Insurance specialists or referral coordinators simplify the referral process for patients and deal with paperwork from insurance companies. They may also arrange for appointments with specialists and other providers. Housekeeping services not only maintain the hygiene of the primary care clinic by disposing of medical waste and ensuring cleanliness, but they may also be responsible for the disposal of sensitive patient-related information. 11